Tehnički vjesnik, Vol. 27 No. 2, 2020.
Izvorni znanstveni članak
https://doi.org/10.17559/TV-20190603084835
Analysis of Characteristics of Non-Commercial Software Systems for Assessing Flatness Error by Means of Minimum Zone Method
Branko Štrbac
; University of Novi Sad, Faculty of Technical Sciences, Trg Dositeja Obradovića 6, 21000 Novi Sad, Serbia
Balázs Mikó
; Óbuda University. Bánki Donát Faculty of Mechanical and Safety Engineering, H-1081 Budapest Népszínház u. 8, Hungary
Dragan Rodić
; University of Novi Sad, Faculty of Technical Sciences, Trg Dositeja Obradovića 6, 21000 Novi Sad, Serbia
János Nagy
; Óbuda University. Bánki Donát Faculty of Mechanical and Safety Engineering, H-1081 Budapest Népszínház u. 8, Hungary
Miodrag Hadžistević
; University of Novi Sad, Faculty of Technical Sciences, Trg Dositeja Obradovića 6, 21000 Novi Sad, Serbia
Sažetak
As far as machine parts are concerned, accuracy can be defined in many aspects. In order for a workpiece to be functional, dimensional and surface roughness requirements are not enough. Accuracy of geometric elements and position tolerances is necessary information. The notation, definitions, interpretations and general values of geometric tolerances are defined by standards. Nevertheless, there are several mathematical methods of calculating values based on data measured by means of coordinate measuring machines. Standards demand the use of the minimum zone method in assessing form deviation without mentioning the way of obtaining it. In this paper, the minimum zone method, which is an iterative algorithm, was investigated. Thus, the result of flatness measurement was calculated by continuous approximation. There are various methods of defining the steps of iteration, affecting the length of time and accuracy of the flatness value. The aim of the research was to examine the characteristics of two non-commercial software solutions for assessing the minimum zone in comparison with the commercial CMM software. Based on the analysis, it can be concluded that the developed software solutions are efficient in assessing flatness error and that the differences between these and the commercial software are negligible.
Ključne riječi
coordinate metrology; flatness error; minimum zone (MZ) method
Hrčak ID:
236809
URI
Datum izdavanja:
15.4.2020.
Posjeta: 1.072 *